Police were called to the 11000 block of Hiram Court in Manassas shortly after 3:30 p.m. Saturday to help the fire department. Fire officials were treating a man police describe as “combative.”

Police tasered the man to try and arrest him. He was taken to an area hospital, where he died. Police are conducting a criminal and internal investigation, they said. The exact cause of death will be determined in an autopsy.